At a lower level, Affinity Multi-GPU also implements some rendering pipeline optimizations to get rid of some of the CPU overhead that would come from dispatching two jobs to render two frames.

With Async Shaders, AMD implements the technical means to do time warping – modifying/warping the rendered image via shaders, using the very latest tracking data to cut down on the perceived latency – and Latest Data Latch is the means to grab that tracking data.